Control panel for a liquid dispenser



FIG. 1 is a perspective view of a control panel for a liquid dispenser showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side view thereof, the right side being a mirror image; and,

FIG. 4 is a top plan view thereof.

The broken lines are included for the purpose of illustrating environment and form no part of the claimed design. 

The ornamental design for a control panel for a liquid dispenser, as shown and described. 